Wilhelm loeenz



(No Model.) A

W. LORENZ. METHOD OFVFORMING HANDLES POR GUTLERY.

No. 317.393,. `1@1-@111-,ef1 May 5, 1885.

N. Pneus. muwulmgnwr. wlmi-gam DA a UNITED. STATES `PATE1\V1? y, OEEICE.y

WILHELM LORENZ, oEoAELsEnI-IE, BADEN, GERMANY.

METHOD OF FORMING HANDLES FORCUTLERY.

SPECIFICATION forming part of Letters Patent No. 317,393, dated May 5,1885.

Application filed December 21, 1853. (No model.) Patented in GermanyApril S, 1383, No. 26,564`; in England June 8,1883, No. 2,553,

in Belgium June ifi, 1853, No. 61,727; in France August 14, 1883, No.155,097, and in Austria-Hungary August 22, 1833, No. 4,534.

To all whom, t may concern..-

Be it known that I, WILHELM LORENZ, of

Carlsruhe, in the Grand Duchy of Baden, in-

the Empire of Germany, have invented certain new and useful Improvementsin the Method of Forming Metal Handles for Knives, Forks, &c.; and I dohereby declare that the following is a full and exact descriptionthereof.

rIhe present handles are formed in one piece in the following way: Disksof the required inetal-such as brass,. alfenidc, German silver,christelle, nickel, or the like-are iirst drawn into tubes, of which thediameters and lengths correspond to the dimensions of the handles to beproduced. rIhese tubes may be cylindrical, or, preferably, tapered toconform to the taper of the handles, and annealed, if annealing isnecessary. 4Then they are filled with lead or any other suitable duetilemate'- rial of a low meltingpoint, which relnains therein and hardens.Thereupon these tubes,

with the dense but soft filling material within, are placed betweenstamping molds or dies having a configuration which corresponds eX-actly to the exterior form and engraving of the handles to be made, andstrongly pressed, receiving by this pressure their shape andornamentation.

For the more effectual reproduction upon the surface of the handle ofall the finely-eut ornamentations on the mold, a tapering plug or wedgeis driven through the filling between the mold halves or dies into theinterior of the handle, by which the lead or analogous filling materialwill be strongly compressed from the interior outward. Dy this means,either at one operation or by again compressing the dies, the metal ofthe handle is forced into even the finest engravings of the'inolds. Thehandles thus stamped are then in a suit-` able furnace subjected to asufiiciently high tempera-ture for the filling material to melt and runout. The handles are then ready for receiving the blades, polishing,burnishing, &c. In stamping handles made of a soft metal-as biocktin,britannia, queenis metal, pewter, &c.-thc filling may be of resin, wax,or the like. In producing handles of a very complicated configurationthey may be prepared for their ultimate shape by pressing thembeforehand on divided molding pieces or dies having an approximateshape, by which operation the last pressing,l and therewith theobtaining of the exact shape and ornamentation, will be facilitated. Theblades may be introduced and secured therein in any convenient way.

The accompanying drawings represent what I consider the best means ofcarrying out the invention.

Figure l is a cross-section, and Fig. 2 a longitudinal section, showingthe tube or shell before it isfilled. Fig. 3 isa cross-section, and Fig.4 is a longitudinal section, showing the tube with a tapering core ofsteel driven into the iilling. Fig. 5 is a cross-section of a handleafter a steel wedge has been inserted in the tapering cavity and themass strongly compressed between dies.

gitudinal section of the same. Fig. 7 is a cross-section showing thedies moved a little distance apart and the wedge farther driven in. Fig.S is a corresponding longitudinal section. Fig. 9 is a section showingthe dies again powerfully compressed, to complete the impression of thedies by acting asecond time on the handle after it has been expanded bythe driving in of the wedge. Fig. 10 is acorresponding section. Fig. 1lis a longitudinal section showing the handles after the soft filling andwedge have been removed. Fig. l2 shows the handle with the shank of ablade soldered in place ready for use.

Similar letters of reference indicate corresponding parts in all thefigures where they occur.

A is the tube or shell, of brass or other sufficiently-yielding metal toallow ofbeing drawn and stamped, as described. B is the lling, of leador other material adapted to yield easily to allow change of form andyet to ofer a reliable internal pressure to force up the material of theshell A, to assume the exact form of the interior of the dies. C is ataper wedge, of steel or the like, slightly smoked or otherwise preparedto avoid adhesion of the metal B. D is the upper die, andE the lowerdie. M, Fig. 12, is the blade and shank.

Fig. 6 is a lon- I elaini as my invention- In testimony whereof I havehereunto set The described method of forming,` ornanientiny hand, atBerlin, this 24th day of August, ed handles for cutlery, consisting infilling 1883, in the presence of two subscribing witproperly-drawntapering tubes with melted nesses. 5 lead or other material fusible at alow temperature, then subjecting the tubes to press- WILHELM LORENZ. urebetween proper dies to partially give the desired impression, thendriving a Wedgeinto Witnesses: the filling while in the dies, and thensubjeet- B. ROI, ro ing to heat to remove the filling, as set forth. C.GRONERT. j

